Lip sync animation with rigify+pitchipoy armature and papagayo
Please take a look at post of lipsync script that you referenced - https://morevnaproject.org/2015/11/11/automatic-lipsync-animation-in-blender/. It says: 


  use a Pose Library to define a mouth poses for the face rig of your
  model. Each pose should be named as corresponding phoneme in your
  lipsync breakdown – “MBP”, “AA”, “O”, “EHSZ”, “etc”… (just inspect the
  .dat file produced by Papagayo to figure out which phonemes you need).


So, just open your .dat file and see which phonemes it uses. Then open your model file and create Poses for your Pose library. Each pose should be named in the same way as phoneme. I.e. for “O” phoneme you need to set bones of your character’s lips in the same way as he says “o”. Then save this pose into the Pose Library under the name “O”. I hope that helps.

P.S. The lipsync script works with any armature. The link referenced in your other answer points to different script.